Impacts of Fiber Supplementation in Sows during the Transition Period on Constipation, Farrowing Duration, Colostrum Production, and Pre-Weaning Piglet Mortality in the Free-Farrowing System

在自由分娩系统中，过渡期母猪补充纤维对便秘、分娩持续时间、初乳产量和断奶前仔猪死亡率的影响